Quelle  iosm_ipc_chnl_cfg.h   Sprache: C

/* SPDX-License-Identifier: GPL-2.0-only
 *
 * Copyright (C) 2020-21 Intel Corporation
 */

#ifndef IOSM_IPC_CHNL_CFG_H
#define IOSM_IPC_CHNL_CFG_H

#include "iosm_ipc_mux.h"

/* Number of TDs on the trace channel */
#define IPC_MEM_TDS_TRC 32

/* Trace channel TD buffer size. */
#define IPC_MEM_MAX_DL_TRC_BUF_SIZE 8192

/* Channel ID */
enum ipc_channel_id {
 IPC_MEM_IP_CHL_ID_0 = 0,
 IPC_MEM_CTRL_CHL_ID_1,
 IPC_MEM_CTRL_CHL_ID_2,
 IPC_MEM_CTRL_CHL_ID_3,
 IPC_MEM_CTRL_CHL_ID_4,
 IPC_MEM_CTRL_CHL_ID_5,
 IPC_MEM_CTRL_CHL_ID_6,
 IPC_MEM_CTRL_CHL_ID_7,
};

/**
 * struct ipc_chnl_cfg - IPC channel configuration structure
 * @id: Interface ID
 * @ul_pipe: Uplink datastream
 * @dl_pipe: Downlink datastream
 * @ul_nr_of_entries: Number of Transfer descriptor uplink pipe
 * @dl_nr_of_entries: Number of Transfer descriptor downlink pipe
 * @dl_buf_size: Downlink buffer size
 * @wwan_port_type: Wwan subsystem port type
 * @accumulation_backoff: Time in usec for data accumalation
 */
struct ipc_chnl_cfg {
 u32 id;
 u32 ul_pipe;
 u32 dl_pipe;
 u32 ul_nr_of_entries;
 u32 dl_nr_of_entries;
 u32 dl_buf_size;
 u32 wwan_port_type;
 u32 accumulation_backoff;
};

/**
 * ipc_chnl_cfg_get - Get pipe configuration.
 * @chnl_cfg: Array of ipc_chnl_cfg struct
 * @index: Channel index (up to MAX_CHANNELS)
 *
 * Return: 0 on success and failure value on error
 */
int ipc_chnl_cfg_get(struct ipc_chnl_cfg *chnl_cfg, int index);

#endif